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MatPlus.Net Forum General Spare me the bet cost of a cholocate bar :-)
 
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(1) Posted by Hauke Reddmann [Saturday, Dec 14, 2019 12:06]

Spare me the bet cost of a cholocate bar :-)


I'm doing a chess training course for school kids,
one thing came to another, and lo and behold I was involved
in a bet: anyone who could come up with a simple (!)
fairy piece that hasn't been invented yet will get a
cholocate bar as reward.

So, here is the Uber (bit like a Taxi, only not):
Moves like a rook but only on a single file.

Do I have to pay? :-)

Hauke
 
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(2) Posted by Rewan Demontay (Real Name: James Malcom) [Saturday, Dec 14, 2019 15:17]

Naahhh. Make them pay! Here something else that you can you. just in case!

The Emiu: It moves like a knight, but it gets two extra moves when it captures due to being flung foward by the powerful force of it’s kick. :-)
 
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(3) Posted by Juraj Lörinc [Saturday, Dec 14, 2019 15:30]

Hauke, that's vertical rook, used in 12 problems in WinChloe db, of them 7 corect.
 
 
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(4) Posted by shankar ram [Saturday, Dec 14, 2019 17:42]; edited by shankar ram [19-12-14]

TRD also used something like that. He called it a "Watchtower".

EDIT: Sorry! Watchtowers are pieces that can check but not move or capture.

I think the name used for Rooks confined to their files was... well, "File Rook"!
 
   
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(5) Posted by Adrian Storisteanu [Saturday, Dec 14, 2019 18:49]

The idea predates Uber (and chocolate bars). Anthony Dickins, "A Guide to Fairy Chess", p.11 (the Dover ed.): "the RANK-RIDER and FILERIDER have a Rook's movement limited respectively to one rank or file. No. 4 in Appendix A shows a problem over 500 years old using two Fileriders."
 
   
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(6) Posted by shankar ram [Sunday, Dec 15, 2019 02:00]

That's right. "File Rider" was the name!
And I had confused TRD's books as the source, instead of Dickins'.
Thanks, Adrian!
 
   
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(7) Posted by Hauke Reddmann [Sunday, Dec 15, 2019 16:48]

500 years old?
He'll get a 500 year old chocolate bar then :P

Hauke
 
   
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(8) Posted by Andrew Buchanan [Friday, Dec 20, 2019 19:07]

Are there names for half a bishop and half a knight too?
 
   
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(9) Posted by shankar ram [Sunday, Dec 22, 2019 10:15]; edited by shankar ram [19-12-22]

There's a class of pieces called "Hunters", which move in one way upwards and in another downwards. A "half Bishop" would be a "B/0" hunter!
The concept could be extended to left/right moves too... "stalker"? ;-)
 
   
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(10) Posted by Andrew Buchanan [Sunday, Dec 22, 2019 18:05]

Thanks very much Shankar.

It's curious that this issue just came up last week. See https://chess.stackexchange.com/questions/27305/arrange-5-non-attacking-knights-on-a-5x5-toroidal-board/27315#27315. There is a change of reference frame which will change rooks to knights to bishops and those back to rooks. But actually that is to retain a veneer of sanity: more general frame of references see all of those pieces as potentially hybrids e.g. rank-rider + left-knight. So I wanted the names of these. I prefer dexter and sinister for half-bishops to the B/0 thing which is an impolite acronym in Britain.
 
 
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MatPlus.Net Forum General Spare me the bet cost of a cholocate bar :-)